This essential read covers all aspects of tuning this versatile and much-loved engine, with an emphasis on selecting the correct combination of parts for your vehicle and its intended use. Topics cover the short engine; cylinder head modifications and aftermarket cylinder heads; camshaft and valve-train; intake and exhaust systems; cooling system; carburettors and fuel injection; distributor and distributor-less ignition systems; engine management; LPG conversions and, finally, supercharging and turbo-charging.